How to Perform a Cortisol and DHEAS Saliva Test

A saliva test for cortisol and DHEAS requires that you spit into a test tube and provide that sample to a laboratory for testing. To get a viable sample, you will need to provide enough saliva to fill at least half of a tube, but preferably three-fourths full, minus the bubbles. You will be asked to spit into the test tube four separate times during these times of day: